Brand Story

Protergia is Metlen Energy & Metals Electricity and Natural Gas provider, the largest private energy company in Greece, and is active in the supply of electricity and gas by offering modern and reliable services. Protergia offers combined electricity and gas products and serves more than 550.000 electricity supply account numbers throughout the country.

The sophisticated way Protergia offers its products, the innovation in its services and the green design focus with friendly service, paves a new way to energy for thousands of households and businesses.

Protergia Hero (1)

Protergia in numbers

Protergia manages all MYTILINEOS power plants, including gas-fired power plants and Renewable Energy plants (wind farms, PV stations and small hydro-electric projects).

It has an energy portfolio of 1,200MW thermal production capacity and 205 MW of Renewable Energy Sources, covering around 11% of domestic electricity demand in 2021.

1200 MW

Thermal Plants

205 MW

Renewable Energy Sources

11 %

of domestic demand for electricity


supply account numbers throughout the country.


In Protergia, we are showing the way to the future of energy

Metlen Energy & Metals Power & Gas Business Unit

One of Metlen Energy & Metals activities is the Power & Gas Business Unit; through Protergia, this business unit manages all the company's standing and energy activities and is the largest private company in electricity generation and gas imports in Greece.


Participation in
EU funded projects


Development & operation
of RES plants


The highest international quality standards

In all its activities, Metlen Energy & Metals Business Unit is committed to applying the highest international quality standards for customer satisfaction, for the respect of Health and Safety rules for its personnel and for environmental protection.

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Sustainable Development

Safeguarding the future

The sustainable development concept has emerged at global level as the only way forward. Energy is the industry that expresses more than any other industry this direction. For this reason, energy generation is now increasingly turning towards renewable sources at global level as timeframes become increasingly pressing. In our company we are focused on all aspects of sustainable development, and for this reason, we have put in place the right policies to ensure that the company develops in a sustainable way. You can check out our environment, health and safety and quality policies to learn more.

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